We divide 75988693 by 644
We want to divide 75988693 by 644.

Step 1:
7 divided by 644 is 0 with a remainder of 7.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Include the next digit (5) from the dividend after 7, then repeat: 75 / 644

On to step 2:
644 goes into 75 0 times with a remainder of 75.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 75, we get 75.
Bring next digit (9) of the dividend behind the 75 and repeat the process: 759 / 644

Let's proceed to step 3:
644 can be fit into 759 1 times, resulting in a remainder of 115.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtracting 644 from 759 leaves us with 115.
Grab the next digit (8) from the dividend, add it to 115, then carry on: 1158 / 644

Let's proceed to step 4:
The number 644 fits into 1158 1 times, leaving a remainder of 514.
The number 1 becomes the next digit in our result. 
Result so far: 11.0
Subtracting 644 from 1158 leaves us with 514.
Include the next digit (8) from the dividend after 514, then repeat: 5148 / 644

Step 5:
When dividing 5148 by 644, we get 7 with a remainder of 640.
Record the quotient 7 as the next digit in the result. 
Result so far: 117.0
If we take 4508 away from 5148, we end up with 640.
Take the next digit (6) from the dividend and append it to 640, then repeat: 6406 / 644

Let's proceed to step 6:
644 can be fit into 6406 9 times, resulting in a remainder of 610.
The number 9 becomes the next digit in our result. 
Result so far: 1179.0
If we subtract 5796 from 6406, we get 610.
Include the next digit (9) from the dividend after 610, then repeat: 6109 / 644

Moving on to step 7:
644 goes into 6109 9 times with a remainder of 313.
Use 9 as the next digit of our solution. 
Result so far: 11799.0
The remainder is 313 after subtracting 5796 from 6109.
Fetch the next digit (3) from the dividend, attach it to 313 and continue: 3133 / 644

Let's proceed to step 8:
644 goes into 3133 4 times with a remainder of 557.
The number 4 becomes the next digit in our result. 
Result so far: 117994.0
Subtracting 2576 from 3133 leaves us with 557.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5570, and continue the process.

Let's proceed to step 9:
If we divide 5570 by 644, we get 8 and a remainder of 418.
Write down 8 as next digit of the result. 
Result so far: 117994.8
Subtract 5152 from 5570 to get 418.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4180, and continue the process.

On to step 10:
When dividing 4180 by 644, we get 6 with a remainder of 316.
Write down 6 as next digit of the result. 
Result so far: 117994.86
If we take 3864 away from 4180, we end up with 316.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3160, and continue the process.

Advancing to step 11:
If we divide 3160 by 644, we get 4 and a remainder of 584.
The next digit of our result is 4. 
Result so far: 117994.864
The remainder is 584 after subtracting 2576 from 3160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5840, and continue the process.

Going ahead to step 12:
644 can be fit into 5840 9 times, resulting in a remainder of 44.
Record the quotient 9 as the next digit in the result. 
Result so far: 117994.8649
The remainder is 44 after subtracting 5796 from 5840.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Moving on to step 13:
440 divided by 644 is 0 with a remainder of 440.
Record the quotient 0 as the next digit in the result. 
Result so far: 117994.8649
Subtracting 0 from 440 leaves us with 440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4400, and continue the process.

Moving on to step 14:
644 goes into 4400 6 times with a remainder of 536.
Use 6 as the next digit of our solution. 
Result so far: 117994.864906
If we take 3864 away from 4400, we end up with 536.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5360, and continue the process.

On to step 15:
The number 644 fits into 5360 8 times, leaving a remainder of 208.
Write down 8 as next digit of the result. 
Result so far: 117994.8649068
Deduct 5152 from 5360 and we're left with 208.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2080, and continue the process.

Advancing to step 16:
When dividing 2080 by 644, we get 3 with a remainder of 148.
Use 3 as the next digit of our solution. 
Result so far: 117994.86490683
If we subtract 1932 from 2080, we get 148.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1480, and continue the process.

The final result is 117994.86490683 with a remainder of 1.48e-07.